Nut-lock.



(no. 709,433." Patented Sept. l6, I902.

s. c. BAUGHN, In.

NUT LOCK. 4 Application filed Feb. 28, 1901. Renewed Feb. 13, 1902.)

(No Model.)

hi; NORRIS Prrcns 00., PNOTO-LITHO.. wAsHmc'roN, n. c.

ATENT FFICE.

SAMUEL o. BAUGHN, JR, or COMER, KENTUCKY, ASSIGNORTO T. w.

COOPER, 'ornnnonenovn, KENTUGKY.

SPECIFICATION forming part of Letters Patent No. 709,433, dated September 16, 1902. Application filed February 28,1901. Renewed February 13, 1902. Serial No. 93,944. (No model.)

To. a whom it may concern: Beitknown thatI, SAMUEL C. BAUGHN, Jr. l .a citizen of the United States, residing at Comer, in the county of McLean and State of Kentucky, have invented anew and useful Nut-Lock, of which the following is a specification. i a This. invention relates to nut-locks; and the object of the same is to provide simple IO and effective means for securing a nut against movement afterit has been appliedand embodying sti'uctural features for easily releasing the nut by. the application of a wrench or I like device thereto.

j The invention consists in theconstruction and arrangement of the several parts, which will be more fully hereinafter described and claimed. t c i p In the drawings, Figure l is a side elevation'of a bolt and nut shown applied to ele .ments which areconnected thereby and embodying the features of t the improvementI c i Fig. 2 is an end elevation of the bolt end and nut, showing the locking position of the improved attachment. Fig. 3 is a view similar to Fig. 2, showing a wrench applied to the nut and attachmentand by compression separat- .from the bolt ,topermit the nut to be run off. Fig. 4 is a detail perspective view of the imp'roved locking attachment. 1 i

,toindicate corresponding partsin the several wRVleWS. i i

The numeral 1 designates a bolt of any preferred length. or dimension and having a screw-threaded extremity 2,;formed with .,longitudinally extending grooves 3,circumferentially arranged thereon at intervals and having abutting shoulders 4. A nut 5 of I ordinary form is applied to the said screw :threaded endof the bolt, andengaging the saidnutisa washerB, having upper and I lower. righteangular flanges 17 and 8, torespectively bear against opposite side edges i of. thenut, and also provided with, a central a opening 9 to permit the washer as an entirety to be easily slipped overandwithdrawn from i the screw threaded extremity of the bolt. 5o

flange 8 andis cut longitudinally outsidethe ling the locking portion of the attachment Similarnumerals of reference are employed,

The flange 7 isconsiderably broader than the front terminal of the side edge of the nut 1 them the necessary resiliency to perform their individual functions, or the entire washer may be formed from suitable spring or resilient metal. i

In screwing the nut 5 on the bolt extremity 2 the washer 6 is turned therewith, and the free end of the pawl of the flange 7 freely plays over the grooves 3; but an outward movement of the nut will cause the free end ofsaid pawl to engage one of the grooves 3 and prevent the nut from having further outward movement until the pawl end is released from the groove engaged thereby. In removing the nut and disengaging the washer-pawl from locked position a wrench or other implement is preferably employed, though other compressing means may be used, and when thewrench-jaws are applied they are caused to engage the flanges 7 and 8 of theiwasher and compress the upwardly-flaring portion 10 toward the adjacent nut edge,and thereby throw the free end of the pawl outwardly engagement, as shown by Fig. 3, and permit 5 from the groove with which it has been in i the n ut to be removed from the-bolt extremity without liability of the pawl end catching in any of the grooves in the latter. i

The improved lock is simple in its construction and can be easily and readily applied and cheaply manufactured. It is intended to be used with any form of devices, such as rail-joints, bridge couplings or irons, as well as in wagon structure, and for all other purposeswhere it is desired to have thenut of a g connecting-bolt resist vibration, jar, or other accidental force havinga tendency to release the same.

Having thus described the invention, what is claimed as new is-- X The combination with a bolt having a screw-threaded extremity formed with a series of longitudinally-extending grooves, and a nut to removably engage said extremity, of a washer removably applied to the nut and bolt and having oppositely-disposed rightangular flanges to rest against opposite side edges of the nut, one flange being wider than the other and out free longitudinally for a greater portion of its length to form a depending resilient pawl which is regularly curved downwardly and loosely projects over the outer face of the nut to have'its free .end enter either one of the grooves in the bolt, the flange carrying the pawl at the point of juncture of the latter therewith at one end being flared outwardly from and fully out of contact with the adjacent portion of the edge of the nut and at an inclination to the adjacent portion of the flange, said flared portion of the flange and pawl being located to one side of the center of the nut' and also inclining in a transverse direction inwardly toward the inner side of the nut and main body of the washer, whereby acompression of the inclined portions of the flange and pawl toward the nut edge will positively disengage the free end of the pawl from the bolt-groove. I

mark

-W. B. WILsoN. 

